Table 2. Comparison of nitrite sources which can be used in meat products

Curing methods Nitrite sources Reaction Etc. References
Synthetic nitrite (Traditional method) • Sodium nitrite• Potassium nitrite • Direct use of nitrite • Commercialized Alahakoon et al., 2015Hu et al., 2015
Natural nitrite • Vegetable powder• Vegetable juice • Nitrate contained in vegetable is converted into nitrite by reducing bacteria • Commercialized Hur et al., 2015Sebranek et al., 2012
Plasma technology • Plasma treated water• Direct plasma treatment• Plasma treated vegetable source • Generation of nitrite by plasma discharge using nitrogen and oxygen in the atmospheric air • Not commercialized Jung et al., 2017aJung et al., 2017bYong et al., 2018